hyf4 isolated negative pressure oxygen breathing apparatus

{"cid":"91221935","title":"Self Contained Air Breathing Apparatus SCBA With Positive Pressure For Toxic Gas Protection In Oxygen Deficient Environments","imgUrl":"https:\/\/img.chinax.com\/nimg\/ea\/d2\/d8a3f1a5597d43894924c8212e6a-200x200-1.jpg","attrs":{"Price":"USD$450","Minimum Order Quantity":"1pc","Delivery Time":"10days","Payment Terms":"T\/T","Supply Ability":"1000pcs 1week","Packaging Details":"carton case"}}

{"cid":"91180449","title":"Helpful Fire Fighting Equipment MZS30 Self Breath Automatic Resuscitator","imgUrl":"https:\/\/img.chinax.com\/nimg\/6a\/80\/80599f45c975853487998b516e3f-200x200-1.jpg","attrs":{"Brand Name":"TOPSKY","Model Number":"MZS30","Minimum Order Quantity":"1 Set","Place of Origin":"China","Payment Terms":"L\/C, T\/T","Supply Ability":"1000 Sets\/Month","Packaging Details":"Export standard","Name":"Fire Fighting Equipment\/ Good quality MZS30 Automatic Resuscitator","Working pressure for oxygen bottle":"20MPa","Capacity for oxygen bottle":"1.0L","Adjustable range for auto-lung":"(12 ~25.5)L\/min","Charging pressure":"(1.77~2.45)kPa","Extracting pressure":"(-1.47~-1.96)kPa","Self-breath supplying":"\u226515L\/min"}}